Bosch IDS 2.0 User Manual

Service Manual Bosch IDS 2.0 | 47
Bosch Thermotechnology Corp. | 07.2021
Data subject to change
12.3.6 E9 Troubleshooting
LED display output: E9
Description: EEPROM IC20 fault
Possible causes:
 EEPROM IC20 poor contact
 EEPROM IC20 improperly installed
Table 34
Procedure:
Figure 21
Replace PCB
Power off and correct the
contact
Yes
Power off and correct the
connection
No
Yes
Is EEPROM IC20
chip improperly
installed?
No
Does EEPROM
IC20 have poor
contact?
EEPROM IC20 Chip

Bosch IDS 2.0 Specifications

General

Refrigerant	R-410A
Stages	Variable
Voltage	208/230 V
System Type	Air Source Heat Pump
Compressor Type	Inverter-driven
Sound Level	As low as 56 dB
Heating Capacity	Varies by model
Cooling Capacity	Varies by model
Noise Level	45 dB to 60 dB
Operating Temperature Range (Heating)	-20°C to 35°C
Dimensions (Outdoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model
Seasonal Coefficient of Performance (SCOP)	Not Available